<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>
<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Test</title>
<script type="text/javascript">
	function f_show(){
		
	}
</script>
</head>
<body>
	<%request.getSession().setAttribute("aa", "asdf"); %>
	<h1>${aa }</h1><hr/>
	<c:remove var="aa" scope="session"/>
	2:<h4>${aa }</h4>
</body>
</html>